Ideal Gas Law Calculator

Calculate one ideal-gas variable from pressure, volume, temperature and amount of gas.

InputsChange a value to recalculate instantly

Pressure

Volume

m³

Temperature

Amount of gas

mol

ResultUpdates as you type

Pressure from PV=nRT103,289.88 Pa

Entered pressure101,325 Pa

How it worksTransparent math

FormulaPV=nRT

Checks the pressure predicted by the ideal gas law from the supplied volume, temperature and amount.

Result breakdownSee the important numbers together

1Pressure from PV=nRT103,289.88 Pa

2Entered pressure101,325 Pa

λ DooMathWork with this calculation

Local · deterministic · optional

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Quick mathNatural-language-style shortcuts for deterministic arithmetic.

Calculator guide

How to use the Ideal Gas Law Calculator

Calculate one ideal-gas variable from pressure, volume, temperature and amount of gas.

01Set inputsChoose values, units and assumptions.

02Apply the modelPV = nRT

03Read the resultCheck the output against the assumptions before using it.

menu_book

Calculate one ideal-gas variable from pressure, volume, temperature and amount of gas.

functions

PV = nRT

fact_check

Review the inputs, units and assumptions before using the result for a real decision.